Jimmy Kimmel tweeted this the other day, and my God was it fantastic.
This dude films a “double rainbow” from his front yard and FREAKS THE FUCK OUT.
At the 1:00 mark and the 2:00 mark he starts to cry. At one point he asks, obviously to no one in particular, “What does this all mean?” Funny you ask, you fucking weirdo. Here’s the answer:
Secondary rainbows are caused by a double reflection of sunlight inside the raindrops, and appear at an angle of 50°–53°